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Latest Oracle 1z0-071 Exam Questions Vce & Practice Test 1z0-07

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  Prerequisites

  There are no official requirements for passing the Oracle 1Z0-071 exam. However, it is recommended that the students have a good grasp of SQL syntax rules. They also need to be able to use general SQL functions, identify the result of fundamental DDL operations, and know how to implement SQL statements and functions.

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  Oracle Database SQL Sample Questions (Q37-Q42):

  NEW QUESTION # 37
  View the Exhibit and examine the descriptions of the DEPT and LOCATIOMS tables.
  
  You want to update the CITY column of the DEPT table for all the rows with the corresponding value in the CITY column of the LOCATIONS table for each department.
  Which SQL statement would you execute to accomplish the task?

  • A. UPDATE dept d
    SET city = (SELECT city
    FROM locations l
    WHERE d.location_id = l.location_id);
  • B. UPDATE dept d
    SET city = (SELECT city FROM locations l)
    WHERE d.location_id = l.location_id;
  • C. UPDATE dept d
    SET city = ALL (SELECT city
    FROM locations l
    WHERE d.location_id = l.location_id);
  • D. UPDATE dept d
    SET city = ANY (SELECT city FROM locations l);

  Answer: A

  
  

  NEW QUESTION # 38
  Which statement adds a column called SALARY to the EMPLOYEES table having 100 rows, which cannot contain null?

  • A. ALTER TABLE EMPLOYEESADD SALARY NUMBER(8,2) DEFAULT CONSTRAINT p_nn NOT NULL;
  • B. ALTER TABLE EMPLOYEESADD SALARY NUMBER(8,2) NOT NULL;
  • C. ALTER TABLE EMPLOYEESADD SALARY NUMBER(8,2) DEFAULT NOT NULL;
  • D. ALTER TABLE EMPLOYEESADD SALARY NUMBER(8,2) DEFAULT 0 NOT NULL;

  Answer: D

  
  

  NEW QUESTION # 39
  Which three statements are true regarding group functions? (Choose three.)

  • A. They can be used on only one column in the SELECT clause of a SQL statement.
  • B. They can be used only with a SQL statement that has the GROUP BY clause.
  • C. They can be used on columns or expressions.
  • D. They can be passed as an argument to another group function.
  • E. They can be used along with the single-row function in the SELECT clause of a SQL statement.

  Answer: C,D,E

  
  

  NEW QUESTION # 40
  Examine the business rule:
  Each student can take up multiple projects and each project can have multiple students.
  You need to design an Entity Relationship Model (ERD) for optimal data storage and allow for generating reports in this format:
  STUDENT_ID FIRST_NAME LAST_NAME PROJECT_ID PROJECT_NAME PROJECT_TASK
  Which two statements are true in this scenario?

  • A. The ERD must have a M:M relationship between the STUDENTSand PROJECTSentities that must be resolved into 1:M relationships.
  • B. STUDENT_IDmust be the primary key in the STUDENTSentity and foreign key in the PROJECTSentity.
  • C. An associative table must be created with a composite key of STUDENT_ID and PROJECT_ID, which is the foreign key linked to the STUDENTS and PROJECTS entities.
  • D. PROJECT_IDmust be the primary key in the PROJECTSentity and foreign key in the STUDENTSentity.
  • E. The ERD must have a 1:M relationship between the STUDENTSand PROJECTSentities.

  Answer: A,C

  Explanation:
  Explanation/Reference:
  References:
  http://www.oracle.com/technetwork/issue-archive/2011/11-nov/o61sql-512018.html

  
  

  NEW QUESTION # 41
  Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database?

  • A. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC).
  • B. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row.
  • C. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC).
  • D. A TIMESTAMP data type column contains information about year, month, and day.
  • E. The CURRENT_TIMESTAMP function returns data without time zone information.

  Answer: A,C,E

  
  

  NEW QUESTION # 42
  ......

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